Gonyaulacysta jurassica subsp. jurassica var. longicornuta

var. longicornuta Sarjeant, 1982b, p.31-32, pl.5, figs.5-6.  Holotype: Sarjeant, 1982b, pl.5, figs.5-6.  Age: early-mid Kimmeridgian. Parent: Gonyaulacysta jurassica subsp. jurassica